- Centralize Data Gathering and Understand Trends: At the most basic level, successful DDoS protection involves knowing what to watch for, monitoring for unusual traffic patterns and activity, and staying abreast of what’s going on in the world to identify and validate potential/emerging attacks more rapidly to extract lessons learned into the appropriate incident response.
- Define a Clear Escalation Path: Systematic processes and methodology are essential for effective DDoS attack mitigation, such as having defined standard operating procedures and incident response teams in place. Also, it is important to prepare for downtime by understanding which systems are vital to your business, and developing and testing contingency plans for short-term (e.g., 1 hour), medium-term (e.g., 24 hours), and long-term (e.g., multiple-day) network or service outages.
- Use Layered Filtering: The goal of DDoS mitigation is to exclude only unwanted traffic while allowing legitimate traffic to enter the network with minimal delay. The most effective means to accomplish this is to use a multi-layered verification process.
- Build in Scalability and Flexibility: To make sure systems will function properly under attack conditions organizations must have a highly scalable, flexible infrastructure that has been tested in various scenarios to identify breaking points. It’s also important to use a distributed model to create and maintain redundancy for high-value applications and services.
- Address Application and Configuration Issues: DDoS attacks have evolved from brute force attacks at the network layer to more sophisticated, difficult-to-detect attacks at the application layer. Attackers can learn the acceptable threshold of activity for an individual application, and then sneak in as an unperceived increase in network traffic. In the overall context of the network, the increased traffic is not an issue, but if the targeted application has a low tolerance for high-volume traffic, the attack can take down the application.
1. Unix Tool Box: An incredibly exhaustive reference for all things Linux. This document is a collection of Unix/Linux/BSD commands and tasks which are useful for IT work or for advanced users.
2. One page Linux Manual: Great one page reference to the most popular Linux commands, it is a summary of useful Linux commands.
3. Linux Reference Card: One great reference published by FOSSwire.
4. Linux Command Line Cheat Sheet: This is an interestingly sorted and helpful cheat sheet by cheatography.
5. Linux Command Line Tips: This is a linux command line reference for common operations. Cleanly sorted and well described.
6. Treebeard’s Unix Cheat Sheet: A great reference that shows command comparisons with that of DOS. So if you are someone who was a DOS user and has switched to Linux, this is the best one too have!
7. Linux Shortcuts and Commands:…